this is a guide on installing etterna with arch linux, as simply worded as possible.
you will need:
cmake (sudo pacman -S cmake)
ninja (sudo pacman -S ninja)
step 1: clone the git
git clone https://github.com/etternagame/etterna
step 2: install the dependencies:
sudo pacman -S alsa-lib jack curl libogg openssl libx11 libxrandr mesa pulseaudio
step 3: assuming cmake and ninja are installed, in the terminal navigate to the build directory (cd build) and run the following commands:
cmake -G Ninja ..
Ninja
cd ..
./etterna
etterna should start. remember that you must set a score in order for your settings to save. <3